TnA Gordon Problem Resolved.

It is no something I would do, but it is entirely up to you.

I checked, E-Poxy is heat resistant to un-curing like de-bonding but it can affect drying and such, Also remember my dad has a very small needle tool that can put just enough on to grip the axel without breaking it.

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So Far, I've repaired 2 things on TnA Engines, 1 Diesel 10 Claw Arm, and 1 Cracked Gear.

Its the gateway to opening them up and exploring, I ocasionally open up my old diesel 10 and learn about the internals because i have 2 now, I will like take the drive unit out and learn how to put it back in and such.

[ripley802]

Sounds good.

is the real worry like for people who use the dropper than comes with it and gets it on the internal cogs?

[Super]

I agree with Mr Ripley, Glue is always only a temporary fix and using Epoxy might ruin any chance for a permanent repair later. You can never get those gears back to the same tightness around the axle that an uncracked gear has so no matter what glue you use it will still be prone to spinning on the axle under a load eventually even if the glued gear remains glued. I recommend just what your plans are, start out small and disassemble engines, especially if you have junkers, until you feel comfortable opening one up and either replacing the cracked gear with a new one or the whole axle. Then the next step would be disassembling the motor itself to see what makes it tick to learn how to repair. Your best tool for learning this is your camer or phone where you can take a picture of each step of disassembly so you can refer to the pictures upon re-assembly.